Title:
COOLING STRUCTURE OF DRIVER IN MOTOR-DRIVEN INJECTION MOLDING MACHINE
Document Type and Number:
Japanese Patent JP3023764
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To raise heat release efficiency of the driver of a motor-driven injection molding machine and to decrease the installed number of a motor fan for cooling.
SOLUTION: A heat sink 20 equipped with a motor fan 16 as a heat release means of a servoamplifier 11 is assembled as structure separated from other parts of the servo amplifier. The heat sink 20 is held in a casing 10 which has an air intake 13 and an air exhaust port 14 and is shared with a duct. An air flow path is formed so that air taken in from the air intake 13 through the motor fan 16 is heat-exchanged in the heat sink 20 and thereafter exhausted from the air exhaust port 14.
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Inventors:
Kazuo Hiraoka
Application Number:
JP7037896A
Publication Date:
March 21, 2000
Filing Date:
March 26, 1996
Export Citation:
Assignee:
Sumitomo Heavy Industries Ltd.
International Classes:
B22D17/20; B22D17/26; B29C45/17; B29C45/66; B29C45/72; (IPC1-7): B29C45/72; B22D17/20
Attorney, Agent or Firm:
Yosuke Goto (1 person outside)